Cognomen Masó (マソ 
, Masó 
) , throughout the world, is a rare last name. The family name Masó is habitual in Paraguay, where it is quite a rare surname, Spain, where it is a rare surname, and Argentina, where it is a very rare surname. Much less frequently, Masó is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| マソ | Japan |
| Masó | Paraguay, Argentina, Spain, United States, Mexico |
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bartolomé masó Cuban politician, military and patriot (1830-1907), CU (b. 1830) |
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santiago masó i valentí Spanish politician (1878-1960), ES (b. 1878) |
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rafael masó i valentí Catalan architect, ES (b. 1880) |
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joan masó i valentí Catalan photographer and pharmacist (1883-1973), ES (b. 1883) |
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| bonaventura julià i masó (b. 1855) |
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| miguel saderra masó Spanish author, ES (b. 1865) |
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salustiano masó Spanish poet, ES (b. 1923) |
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| ramon balcells i masó Spanish educationist (1882-1937), ES (b. 1882) |
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josep masó quer ES (b. 1925) |
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| angelina masó i valentí Spanish embroiderer, ES (b. 1886) |
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| narcís masó valentí Spanish pedagogue, ES (b. 1890) |
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| artur masó i valentí ES (b. 1882) |
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| josep masó i valentí ES (b. 1887) |
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| alfons masó i valentí ES (b. 1889) |
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| maria de la bonanova masó i valentí ES (b. 1892) |
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Mar, Teia, Nina, Elsa, Olga, Quim, Xicu, Maria, Marta, Malee, Sergi, Sonia, Aniol, Cande, Clara, Belen, Paula, Pablo, Pedro, Pilar, Roser, Roger, Toni, Juan, Joan, Jose, Ana, Ane, Pau, Pep, Pia, Leo, Eva, Ïa, Marc, Sara, David, Alba, Aide, Caro, Blai, Pere, Rosa, Dani, Laia, Luis, Lula, Javi, Anna, and Gemma